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SchizophreniaPhase 4NCT02307396

Evaluation of the Necessity of Long-term Pharmacological Treatment With Antipsychotics in Schizophrenic Patients

A Phase 4 study testing Olanzapine, Amisulpride and Risperidone in people with Schizophrenia and Schizophrenia and Disorders With Psychotic Features, run by Technical University of Munich at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The main objective of the trial is to evaluate, how long an antipsychotic relapse-prevention should be continued and to which time a patient with schizophrenia is protected enough, so that a withdrawal or reduction of the medication seems appropriate. Relapse is defined as primary outcome. Read more about this study

Who is it for?
Ages 18 to 65 years
What is being tested?
Olanzapine, Amisulpride and Risperidone
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
21 participants
Where
1 siteGermany
Study dates
1 Feb 2015to 22 Jun 2016
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of schizophrenia or schizoaffective disorder
  • The participants have to be in remission for at least 3 years (i.e. no psychiatric hospitalisation) under a stable antipsychotic medication. Remission will be measured using the remission criteria by Andreasen et al. (2005) Score ≤3 for the items concerning psychosis of the "Positive and Negative Syndrom Scale" (PANSS; Kay et al., 1987): "Delusions" (P1), "Conceptual disorganisation" (P2), "Halluzinations" (P3), "Mannerisms and posturing" (G5) and "Unusual thought content" (G9) and a score ≤3 on the "Clinical Global Impression Severity Scale" (CGI-S; Guy, 1976)
  • Able to give informed consent

Who cannot join

  • Actively suicidal
  • Serious medical illnesses
  • Known non-complience concerning the medication
  • Medication with clozapin
  • Medication with antidepressants and mood stabilisors that were initiated during the last 6 weeks before study enrollment
  • Patients with substance dependence other than nicotine or caffeine within 6 months prior to baseline
  • Unability to give informed consent
  • Pregnancy

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Psychiatrische Klinik und Poliklinik fuer Psychiatrie und Psychotherapie der Technischen Universitaet Muenchen am Klinikum rechts der Isar

    Munich, Bavaria, 81675

Other trials in Germany

About this study

Official title: Evaluation of the Necessity of Long-term Pharmacological Treatment With Antipsychotics for the Prevention of Relapse in Long-term Stabilized Schizophrenic Patients: a Randomized, Single-blind, Longitudinal Trial

The main objective of the trial is to evaluate, how long an antipsychotic relapse-prevention should be continued and to which time a patient with schizophrenia is protected enough, so that a withdrawal or reduction of the medication seems appropriate. Relapse is defined as primary outcome.

Read the detailed description

The main objective of the trial is to evaluate for the first time, how long an antipsychotic relapse-prevention should be continued and to which time a patient is protected enough, so that a guided withdrawal or reduction of the medication seems appropriate. Relapse is defined as primary outcome. We include patients with schizophrenia or schizoaffective disorder in remission for at least 3 years under a stable antipsychotic medication.

Being tested
Olanzapine, Amisulpride, Risperidone, Haloperidol, Quetiapine
Medical subject headings
Schizophrenia, Schizophrenia Spectrum and Other Psychotic Disorders, Psychotic Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • OlanzapineDrug

  • AmisulprideDrug

  • RisperidoneDrug

  • HaloperidolDrug

  • QuetiapineDrug

  • PerphenazineDrug

  • SulpirideDrug

  • bromperidolDrug

  • ZuclopenthixolDrug

  • ThioridazineDrug

  • PaliperidoneDrug

  • ZiprasidoneDrug

  • BenperidolDrug

  • FluspirileneDrug

  • PimozideDrug

  • PerazineDrug

  • FluphenazineDrug

  • FlupentixoleDrug

  • SertindoleDrug

Study groups in NCT02307396
Study groupRoleWhat they receive
InterventionExperimentalIntervention group: guided discontinuation or dose-reduction of the current antipsychotic medication. The antipsychotic drug used before study start will be discontinued gradually under medical surveillance. The process of discontinuation depends on the physicians judgement und should be guided be the participants needs and clinical status. This approach was already used before in another study ("gradual discontinuation", Wunderink et al., 2007). We assume that the dose can be reduced by approximately 1/6 of the starting dose every two weeks. If long acting antipsychotics are applied, there is no need for a gradual discontinuation due to their long half life.
Receives: Drug: Olanzapine; Drug: Amisulpride; Drug: Risperidone; Drug: Haloperidol; Drug: Quetiapine; Drug: Perphenazine; Drug: Sulpiride; Drug: bromperidol; Drug: Zuclopenthixol; Drug: Thioridazine; Drug: Paliperidone; Drug: Ziprasidone; Drug: Benperidol; Drug: Fluspirilene; Drug: Pimozide; Drug: Perazine; Drug: Fluphenazine; Drug: Flupentixole; Drug: Sertindole
ControlActive comparatorThe participants receive the same antipsychotic drugs, they have received before the start of the study, without changing the dose or the application form. Study medication is, with exception of Clozapin, every oral or depot neuroleptic drug approved for the treatment of schizophrenia in Germany.
Receives: Drug: Olanzapine; Drug: Amisulpride; Drug: Risperidone; Drug: Haloperidol; Drug: Quetiapine; Drug: Perphenazine; Drug: Sulpiride; Drug: bromperidol; Drug: Zuclopenthixol; Drug: Thioridazine; Drug: Paliperidone; Drug: Ziprasidone; Drug: Benperidol; Drug: Fluspirilene; Drug: Pimozide; Drug: Perazine; Drug: Fluphenazine; Drug: Flupentixole; Drug: Sertindole

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Relapse

    The criterion is measured at every visit (every two weeks) two weeks with two criteria, both have to be fullfilled:

    1. Score ≥4 (moderate) for at least two of the following PANSS-items : "Delusions" (P1), "Conceptual disorganisation" (P2), "Halluzinations" (P3), "Mannerisms and posturing" (G5) and "Unusual thought content" (G9) (PANSS; Kay et al., 1987)
    2. Score ≥4 on the "Clinical Global Impression Severity Scale" (CGI-S; Guy, 1976b)

    Measured: Every 2 weeks up to 26 weeks

Secondary outcomes (11)
  1. Psychiatric rehospitalisation

    Measured: Every 2 weeks up to 26 weeks

  2. Totalscore of Positive and Negative Syndrome Scale (PANSS)

    PANSS-Scale

    Measured: Baseline, then every 4 weeks up to 26 weeks

  3. Occurence of specific adverse effects (open interview)

    Measured: Baseline,then every 4 weeks up to 26 weeks

  4. Clinical Global Impression - Severity Scale (CGI-S)

    CGI-I Scale

    Measured: Baseline, then every 4 weeks up to 26 weeks

  5. "Quality of life" measured by the questionnaire "Subjective well-being under neuroleptics scale" (SW-N)

    SW-N-Scale

    Measured: Baseline, and after 12 and 26 weeks

  6. Status of occupation

    Measured: Baseline, and after 12 and 26 weeks

  7. Personal and Social Performance (Personal and Social Performance Scale [PSP])

    PSP-Scale

    Measured: Baseline, and after 12 and 26 weeks

  8. Adherence/Attitude of patients towards medication (Medication Adherence Rating Scale [MARS])

    MARS-Scale

    Measured: Baseline, and after 12 and 26 weeks

  9. Drop-outs total and due to specific reasons

    Measured: Every 2 weeks up to 26 weeks

  10. Movement disorders (Abnormal Involuntary Movement Scale [AIMS])

    AIMS-Scale

    Measured: Baseline, and after 12 and 26 weeks

  11. Weight change

    Measured: Baseline, and after 12 and 26 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Dec 2014 (estimated)
  2. Study start1 Feb 2015
  3. Primary completion22 Jun 2016
  4. Study completion22 Jun 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
21 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02307396
Sponsor's protocol ID
1723/1-1
Other IDs
2013-000338-37, DO 1723/1-1, DRKS00006878
Status last verified
Oct 2018
First submitted
24 Nov 2014
Last updated
11 Oct 2018
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Olanzapine, Amisulpride and Risperidone in people with Schizophrenia and Schizophrenia and Disorders With Psychotic Features, run by Technical University of Munich at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 11 Oct 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Relapse (time frame: Every 2 weeks up to 26 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Oct 2018.

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